4987851 has 24 divisors (see below), whose sum is σ = 7721664. Its totient is φ = 2839680.

The previous prime is 4987847. The next prime is 4987867. The reversal of 4987851 is 1587894.

It is not a de Polignac number, because 4987851 - 2² = 4987847 is a prime.

It is a super-3 number, since 3×4987851³ (a number of 21 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4987891) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9276 + ... + 9798.

It is an arithmetic number, because the mean of its divisors is an integer number (321736).

Almost surely, 2^4987851 is an apocalyptic number.

4987851 is a deficient number, since it is larger than the sum of its proper divisors (2733813).

4987851 is a wasteful number, since it uses less digits than its factorization.

4987851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 571 (or 554 counting only the distinct ones).

The product of its digits is 80640, while the sum is 42.

The square root of 4987851 is about 2233.3497263080. The cubic root of 4987851 is about 170.8589856911.

The spelling of 4987851 in words is "four million, nine hundred eighty-seven thousand, eight hundred fifty-one".